Home / 1,216,313.23-1,678,778.73-707,309.23

Finding the Fourth Proportional to 1,216,313.23, 1,678,778.73 and 707,309.23

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Solution

The fourth proportional to 1,216,313.23, 1,678,778.73 and 707,309.23 is: 976,241.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,313.23 : 1,678,778.73 = 707,309.23 : x
  2. Step 2: Convert to fraction form
    1,216,313.23/1,678,778.73 = 707,309.23/x
  3. Step 3: Cross multiply
    1,216,313.23x = 1,678,778.73 × 707,309.23
  4. Step 4: Simplify right side
    1,216,313.23x = 1,187,415,690,856.68
  5. Step 5: Solve for x
    x = 1,187,415,690,856.68/1,216,313.23
  6. Step 6: Final answer
    x = 976,241.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.